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evenly spaced teeth on basal third of siphon; individual tooth with 1 to 5 coarse 

 teeth on one side; tufts of siphon inserted beyond pecten and represented by 

 three pairs of long hairs irregularly placed and a pair of small subapical tufts 

 of 2 to 3 branches each. Anal segment longer than wide, completely ringed 

 by the dorsal plate; lateral hair single or double; dorsal brush consisting of a 

 single upper and a single lower caudal hair on either side; ventral brush well- 

 developed, confined to the barred area; gills 4, longer than the segment, stout, 

 each tapering to a blunt patch. 



DISTRIBUTION. — Widely distributed in North America from the Gulf of 

 Mexico to southern Canada. Southern States: Alabama (170); Arkansas 



Fig. 139. Larva of Culex resluaus Theobald. A, Terminal segments. 

 B, Head. C. and D, Pecten teeth. E, Comb scale. 



